{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4NAAIVRQR37XUDSVH6SVVAJDIE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"886220316e378775f333694e2f548ceaf38e38615248837896cf604cc4fc010b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-05-23T12:10:52Z","title_canon_sha256":"774f16cbff730297077718d88ec9c91729e0c19049568502c8d4ca0599fb9162"},"schema_version":"1.0","source":{"id":"2605.24539","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.24539","created_at":"2026-05-26T01:03:45Z"},{"alias_kind":"arxiv_version","alias_value":"2605.24539v1","created_at":"2026-05-26T01:03:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.24539","created_at":"2026-05-26T01:03:45Z"},{"alias_kind":"pith_short_12","alias_value":"4NAAIVRQR37X","created_at":"2026-05-26T01:03:45Z"},{"alias_kind":"pith_short_16","alias_value":"4NAAIVRQR37XUDSV","created_at":"2026-05-26T01:03:45Z"},{"alias_kind":"pith_short_8","alias_value":"4NAAIVRQ","created_at":"2026-05-26T01:03:45Z"}],"graph_snapshots":[{"event_id":"sha256:46c83ce2fb1ac0b4cadfb8308cce6273b3691cff0a02506ce280e6ad7a87daaa","target":"graph","created_at":"2026-05-26T01:03:45Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.24539/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Agent harness evolution improves frozen language-model agents by modifying the executable structures around them. We study this paradigm as a form of sample-efficient fast adaptation: instead of updating model weights, an agent can acquire task-specific competence by changing its external harness, while leaving the base model's general capabilities intact. Prior work shows that self-generated rollouts can support harness search, suggesting that agents may acquire new task competence through practice. Yet in long-horizon stochastic environments, self-practice becomes fragile: rewards are sparse","authors_text":"Chuang Wang, Jian Su, Lirong Che, Peiwen Lin, Xueqian Wang, Yuzhe Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-05-23T12:10:52Z","title":"DemoEvolve: Overcoming Sparse Feedback in Agentic Harness Evolution with Demonstrations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.24539","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:8672ab06bda9e0ef15ac324c56e415677236488e0e86b7d366ca0b80c7bfdc12","target":"record","created_at":"2026-05-26T01:03:45Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"886220316e378775f333694e2f548ceaf38e38615248837896cf604cc4fc010b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-05-23T12:10:52Z","title_canon_sha256":"774f16cbff730297077718d88ec9c91729e0c19049568502c8d4ca0599fb9162"},"schema_version":"1.0","source":{"id":"2605.24539","kind":"arxiv","version":1}},"canonical_sha256":"e3400456308eff7a0e553fa55a8123411aa3c26e08ae0895dda394a15dae3589","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3400456308eff7a0e553fa55a8123411aa3c26e08ae0895dda394a15dae3589","first_computed_at":"2026-05-26T01:03:45.331691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:03:45.331691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UcNyvoBdCpwSTI5teSbp80uKqx8yqCDW+UanCklzdgSKUIovzHCd1g1CPFrCJwRUB3yFaE77HbLZTYQdq8n4BQ==","signature_status":"signed_v1","signed_at":"2026-05-26T01:03:45.332466Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.24539","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8672ab06bda9e0ef15ac324c56e415677236488e0e86b7d366ca0b80c7bfdc12","sha256:46c83ce2fb1ac0b4cadfb8308cce6273b3691cff0a02506ce280e6ad7a87daaa"],"state_sha256":"90b9f2ac554833c3aed161451e80e67d9ac7e82ff884634ef5bfd98fc8dec944"}